From sundials to atomic clocks
Subtitle: understanding time and frequency
By: by James Jespersen and Jane Fitz-Randolph ; illustrated by John Robb.
Contributors: Fitz-Randolph, Jane, joint author.; Robb, John.
Series: National Bureau of Standards monograph ; 155; NBS monograph ;; 155.
Publisher: National Bureau of Standards, U.S. Dept. of Commerce] : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1977
Place of publication: [Washington
Language: eng
Number of pages: 175
Subjects: Time; Time measurements; Clocks and watches
Notes: Bibliography: p. 170.
Includes index.